82012720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 198469440

約数和(自身を除く): 116456720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 103, 148, 185, 206, 269, 296, 370, 412, 515, 538, 592, 740, 824, 1030, 1076, 1345, 1480, 1648, 2060, 2152, 2690, 2960, 3811, 4120, 4304, 5380, 7622, 8240, 9953, 10760, 15244, 19055, 19906, 21520, 27707, 30488, 38110, 39812, 49765, 55414, 60976, 76220, 79624, 99530, 110828, 138535, 152440, 159248, 199060, 221656, 277070, 304880, 398120, 443312, 554140, 796240, 1025159, 1108280, 2050318, 2216560, 4100636, 5125795, 8201272, 10251590, 16402544, 20503180, 41006360, 82012720]

約数ペア:

[(1, 82012720), (2, 41006360), (4, 20503180), (5, 16402544), (8, 10251590), (10, 8201272), (16, 5125795), (20, 4100636), (37, 2216560), (40, 2050318), (74, 1108280), (80, 1025159), (103, 796240), (148, 554140), (185, 443312), (206, 398120), (269, 304880), (296, 277070), (370, 221656), (412, 199060), (515, 159248), (538, 152440), (592, 138535), (740, 110828), (824, 99530), (1030, 79624), (1076, 76220), (1345, 60976), (1480, 55414), (1648, 49765), (2060, 39812), (2152, 38110), (2690, 30488), (2960, 27707), (3811, 21520), (4120, 19906), (4304, 19055), (5380, 15244), (7622, 10760), (8240, 9953)]